In the ultra-relativistic non-central heavy-ion collisions at the collider facilities such as Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC), a large angular momentum [1]} as well as a large magnetic field [2]} are generated at the early stages of the evolution, which can couple with the intrinsic spin of the constituent particle via the processes similar to Einstein-de Haas and Barnett effects. It was predicted that such couplings lead to the spin polarization of the medium [3]}, [4]}, which can be observed in particles emitted during freeze-out. This was latter confirmed experimentally [5]}, [6]}, [7]}, [8]}, [9]}, [10]} giving a significant boost to the study of spin-polarization.
